Telerik load pdf The library supports . rtf and other document formats. RadPdfProcessing is a processing library that allows you to create, import and export PDF documents. txt, *. See how! Dec 15, 2022 · Check out the new functionality of Telerik PdfProcessing to convert PDF pages to images. Below is the reference code:import * as React from "react";import { P Display PDF files in the browser. Includes support, documentation, demos, virtual classrooms, Visual Studio Extensions and more! Aug 25, 2025 · The PDF document in the PDFViewer control is visually corrupted on initial display. It helps knowing that async threads are involved. In this article you can see how to configure the loadPage property of the Kendo UI PDF Viewer. I didn't see this in the Telerik pdf viewer. In the Examples, it is shown that we need to store the PDF Jan 19, 2024 · Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher. Libraries / RadPdfProcessing Overview Telerik PdfProcessing Library enables code-only generation, import, and export of PDF documents with text blocks, images, forms, tables, shapes, and more. The Telerik UI for WinForms PdfProcessing Library enables code-only generation, import and export of PDF documents with text blocks, images, forms, tables, shapes and more. A working toolbar exist but it not rendering pdf to The PDF Viewer control in Telerik UI for . NET AJAX and/or DevCraft bundles), you can easily upload and convert multiple files types like *. Aug 13, 2023 · As well as fixing the other major issue with the Blazor PDF Viewer regarding PDF degradation and it's inferior PDF quality in regard to the Kendo PDF Viewer. This article describes common problems that can be encountered when using RadPdfViewer and their solutions. js file Telerik is using in demo that seems confined to only load pdf's from directories within the web application and it's sub-folders defined in IIS for the website. To do that, use the draw() method of the Spreadsheet Sheet object. pdf" ) from your local drive without using Open File Dialog. docx, . What can I do to fix this ? Description This article demonstrates how to print a document to a specific printer by using RadPrintDocument. PDFViewer How can I export a PDF file from a hidden Editor and load it into a PDFViewer? Follow the steps in the Knowledge Base section of the Telerik UI for ASP. Some of them are listed here, along with the ways to show a file. With it, you can scale the content to better fit on the page, customize the paper size, change the page orientation, work with templates and use many others features that provide extensive control over the exported PDF file. Depending on the scenario, you could take advantage of the different functionalities each library provides. NET AJAX? Start a free 30-day trial Getting Started with the Telerik WebForms PDFViewer The Telerik [. Nov 27, 2013 · Hello Ramesh, Thank you for contacting us! Due to limitation of Silverlight, the file system is a subject of security restrictions. Dec 20, 2023 · How do I call the Controller to load a PDF using the PDFViewer Control 1 Answer 300 Views Brandon Renk asked on 20 Dec 2023, 01:12 PM Jul 11, 2023 · Hallo, i want to Render PDF Files with the PDF Viewer Component. Feb 16, 2022 · Hello, I have a RadPdfViewer in one of my pages but no matter the way I try to load a PDF, it stays hanging in the loading stage indefinitely. My question is, is there anyway to optimize loading information into this control With the ASP. Examples of Import/Load and Export/Save RadSpreadProcessing Workbook to facilitate working with text, Excel and PDF documents Find other useful information in the Knowledge Base section of the Telerik Document Processing documentation. NET MAUI PDF Viewer control enables you to visualize PDF documents through the Source property of type Telerik. The class that contains implementations for all the CMap tables defined by the PDF Format Specification is called PredefinedCMapsProvider. NET Core library along with 120+ professionally designed UI components. Looking forward to your reply. What is the exception you get when you try to load a pdf in the PDFViewer this way? Regards, Ivan Danchev Progress Telerik Progress is here for your business, like always. Find other useful information in the Knowledge Base section of the Telerik Document Processing documentation. - Display thumbnails of the loaded pages. View Check our document management article about Using PdfFormatProvider. NET MVC, and discover its built-in features like the toolbar and the supported events. For our purposes this solution doesn't fit since a number of other tasks are performed between the two loads and these shouldn't wait for the first PDF to load before continuing. Apr 7, 2025 · I can't speak on behalf of Progress Software, but I’d like to point out that while it's possible to pass a URL (instead of PDF data) to the PDF Viewer components in their Angular (docs), React (docs), and jQuery (docs) libraries, there doesn’t appear to be a similar feature available for their Blazor PDF Viewer. Can you provide me with a sample project which reproduces the problematic behavior so I can properly investigate it locally. NET Core app with the Telerik PDFViewer. Try out the demos. That is why you cannot open a file (in your case "C:\Ramesh\Books\Sample. The following snippet shows how you can print the document. Mar 27, 2020 · I am working with the Telerik UI for WinForms 2020 R1 release and I am experiencing a multitude of issues loading PDFs into the Telerik. I guess that there is something specific to your code and/or pdf file. This article will describe the most common approaches for creating a PDF document and how to achieve the desired Jan 31, 2018 · Hello, Is there a way to load a pdf file; located in Project's Resources, into pdfviewer? Thanks a lot, William The KendoReact PDF Generator enables you to export a selection of or the entire content of a web page to a PDF file. When retrieving a file as a byte array from database and creating a Learn how to upload a PDF file through the Telerik UI for ASP. The Reporting Engine determines the type of the Base64 encoded content from its starting symbols that indicate the MIME type - see for more details the Stackoverflow thread How to get MIME-TYPE from Base 64 String? Telerik PdfProcessing provides easy to use API which allows code-only generation of PDF documents. The PdfViewer is part of Telerik UI for ASP. following is my code. To try it out sign up for a free 30-day trial. Sep 16, 2014 · Hello Michael, Thank you for writing. Some of the errors that I am experiencing Use the Telerik UI for Blazor Loader component to visually communicate to the user that your application is doing work in the background. NET applications. To properly load the data in the <iframe>, opne the following example in the full screen mode of the Dojo. pdf")); In this article you can see how to configure the pdfjsProcessing. For Human Resource files you need the ability to load numerous files into one viewer to show a complete document. Includes support, documentation Telerik Words Processing is a processing library, which allows for Word-like document manipulations in . ContentStreamParser. Learn how to print a report directly from the browser, without displaying it in the Viewer with Telerik Reporting. Is it possible? Thanks Jul 12, 2023 · But the other viewers load larger file sizes faster because they load them in modules and when you scroll through the viewer, the others will be loaded. Currently processing big images is a time consuming operation but I can assure you that we will do our best to improve the performance of PdfViewer in the future Feb 4, 2025 · at Telerik. I tried to load a pdf file using a timer but was not able to reproduce the described behavior locally. The PDF Processing is part of KendoReact premium, an Jul 23, 2013 · Dear All my application save file after scanning in PDF format and in path \\172. CMapUtils package provides a default implementation for obtaining the data of a predefined CMap table by a given name. AssociatedObject property allows you to specify the Check our document management article about Using PdfFormatProvider. However, you cannot add an image using the LoadDocument (Stream stream) method because this method loads a PDF document from a specified stream. Controls / PDF Viewer . Once the document is loaded you can call the Print method. Part of the Telerik UI for WPF library along with 165+ professionally-designed UI controls. Aug 31, 2023 · Open, view and navigate through PDF documents from any device—mobile or desktop—with Telerik PDFViewer for . Part of the Telerik UI for Blazor library along with 120+ professionally-designed UI components. Changing this solution to a Task based or event based solution with awaits or queues unfortunately over complicates things as well and it's much Mar 10, 2020 · Hello, i try to show a pdf file with the PdfjsProcessingSettings, but i get the message "file fails to process. The Telerik UI for ASP. In order to Use the ASP. - We use a different viewer due to this capability. html, *. The current example displays a basic configuration for a PDFViewer. Parsers. The current one file option doesn't work for us. NET with the Telerik PdfProcessing Library. The library supports flow-like editing as well as great control over native PDF elements. 6. Learn how to load a PDF document into a Kendo UI PDFViewer dynamically from a controller or a database. Jun 25, 2019 · I create PDF documents programmatically (C# / iText on the server) and was wondering if I could use a MemoryStream as a datasource for the PDF viewer without having to write the document to file first. Feb 3, 2023 · I have installed the necessary nuget packages for pdf processing in an exisiting Asp. Description Telerik RadPdfProcessing provides easy to use API which allows code-only generation of PDF documents. PdfFormatProvider via a FileStream (for splitting into individual pages) that I can properly load into the Telerik RadPdfViewer using the Load () method with the file name. NET AJAX, a professional grade UI library with 120+ components for building modern and feature-rich applications. docx, *. Includes support, documentation, demos, virtual classrooms, Visual Studio Extensions and more! The Telerik UI for ASP. NET MVC Upload component and load it into the Telerik UI for ASP. Load Cyrillic font for PDF export Example View Jan 31, 2018 · Hello, Is there a way to load a pdf file; located in Project's Resources, into pdfviewer? Thanks a lot, William Jul 23, 2013 · Dear All my application save file after scanning in PDF format and in path \\172. NET MAUI empowers the users of your application to directly open and view PDF documents within their mobile or desktop app, eliminating the need for any external software installation or switching between different applications. Read more in Telerik Document Processing Documentation. in this method am trying to add paragraph,section and ect. You can use RadPdfProcessing in any web or desktop . Maui. Is it possible to load them to PdfViewer? I found this example but it's for MVC. The article shows how to automatically import on Page_Load HTML content in RadEditor from an external HTML file and export it to PDF with the help of HtmlFormatProvider and PdfFormatProvider providers part of the Progress RadPdfProcessing library. Here is the piece of code I use to load my document: PdfDocumentSource doc = new PdfDocumentSource (new System. Winforms PdfViewer enables you to easily load and display PDF documents natively in your app without using any third-party tools except Telerik’s WinForms toolbox. The Kendo UI for jQuery PDFViewer displays PDF files in the browser and consists of a toolbar and a scrollable container that wraps the page elements. Sep 13, 2023 · PDF Viewer initial document load is very slow If the PdfViewer is initialized with a default document, the display performance of this document will be a lot worse, compared to PDF documents that are loaded programmatically after the component is already on the web page. The following code example shows how to load a bas64 string dynamically. Pdf. I created a USerControl which containe a RadPdfViewer and I am unable to load a document PDF file from disk. In order to achieve your goal, you could use the PdfViewer control to import the document and create images from its pages using the ThumbnailFactory class. NET MVC PDFViewer component. After a few Seconds the PDF will be Rendered. All the projects listed in this topic are available for download in the SDK repository on GitHub Troubleshooting Common Problems This article describes common problems that can be encountered when using RadPdfViewer and their solutions. This example demonstrates how to create a document containing images, text and shapes and export it to PDF. Old. Some of them are listed here. Component PDF Export Support The following Kendo UI widgets support PDF export implementations: Grid (demo) TreeList (demo) PivotGrid (demo) Scheduler (demo) Gantt (demo) Spreadsheet (demo) Editor (demo) The Charts and Diagram Take advantage of the import/export settings that give you modification options offered by the PdfProcessing library. Jul 23, 2020 · Which nuget packages do I need to install to be able to load and print a PDF document? I have found a few posts suggesting 'RadPdfViewer' is the class I need to get access to, but I cannot find a nuget package that allows this to be used in my project. NET Core PDFViewer component enables end-users to review PDF files directly within the browser without the need to perform download operation at first hand. The Data of the PDF is already fetched from the API when the PDF-Viewer starts Rendering the Loading animation appears and freezes. Apr 13, 2020 · Hi, I have pdf files stored as a blob in sql database. NET application without relying on third-party software like Dec 22, 2015 · Hello, I am using the PDFViewer control and my intent is to show a PDF (prior to writing to disk), the issue I am having is that once the PDF attempts to load into the PDF Viewer it is incredibly slow. ui. but it is not working Import and Export to XLSX File Format Using XlsxFormatProvider Read more in Telerik Document Processing Documentation. Controls. If you provide a PDF document to your stream instead of an image file ("2_b. By subscribing to the bug report, you will receive email notifications for any updates on its status. can you tell me how to access and how to dynamic load all control in view model? Example view model class am writing one method. 1 to use TelerikPdfViewer, I just copy paste code you provided. - Telerik. This PDFViewer example is part of a unique collection of hundreds of jQuery demos, with which you can see all Kendo UI for jQuery components and their features in action. NET Core components. InvokeGeneralGraphicsStateOperator(String op, Object[] pars) Oct 30, 2020 · I am trying to load a Word document and export to PDF, but the export file change the doc content when download it. Generate, import and export PDF documents using C# and VB. 30. Developer Focused Examples The Telerik SDK repository provides additional demos for the document processing libraries. but some pdf files are not displayed correctly (Image PDF) , but viewed as a blank page. DocumentSource. Apr 25, 2023 · I just want to set the default page width to 'fitToWidth' instead of 100% on page load. NET Core PDFViewer component. jpg") it will work as expected Jun 10, 2014 · Hello, Can we load PDF file into Telerik ReportViewer? Thank you, May 24, 2021 · Having troubles loading your PDF files in the Telerik PdfViewer for ASP. Maybe via an array of file names. With its multiple configuration options, the Loader fits any app. am trying to do from radrichtextbox export to PDF files with image also. Now, I'm trying to display the PDF with the RadPdfViewer but it is The Telerik UI for Blazor PDF Viewer component allows displaying and interacting with PDF files directly in the browser. The libraries included in Telerik Document Processing allow you to create, modify and export PDF documents, as well as convert a document from different file format to PDF. However it is possible with different files or on different machines the result to be different. NET Framework, . pdf, . If you load a helvetica-cyrillic. ===== TELERIK EDIT: Here is a possible workaround - replace the built-in PDF Viewer LoaderContainer with another Learn how to work with interactive forms (form fields) in PdfProcessing. Learn how to load and display PDF documents within a popup in a . THe document is stored in database as a byte array and on retrieval i am converting this bytearray to a stream and displaying it using the following code: Learn how to use the API of the Telerik UI for WinUI PdfViewer control to open and load files. Core 2023 This article demonstrates how you can convert a docx file to a PDF with the WordsProcessing library. Solution You need to use the DocumentLoaded event because the document is loaded in a separate thread. I'm reading the PDF byte array from my database back into my application. In order to export the text content of a PDF file you can use the TextFormatProvider class. A live demo demonstrating such approach is available here: Learn how to resolve the issue of a blurry PDF in RadPdfViewer for ASP. This is also a convenient method that can be used to close the stream if you are loading a PDF from a stream. Jun 6, 2017 · Thanks for the info. Libraries / RadPdfProcessing / Formats and Conversion / Pdf / PdfStreamWriter Overview This article explains the PDF Stream Writer functionality - how it works and how you can use it. The Telerik UI for . This is why is not possible to export a PDF document to image using this library. Includes support, documentation, demos, virtual classrooms, Visual Studio Code Extensions and more! Mar 5, 2020 · Hello, Kunal, I would like to clarify that RadPdfViewer is a control that natively visualize PDF documents straight in your application. ttf file in the wwwroot folder of your application, the export will work out of the box. Oct 13, 2022 · Hi,I have upgrade telerik version to 3. Feb 13, 2015 · Hello Jesse, Thank you for contacting us. Nov 7, 2025 · PDF files can be opened as long as you can obtain a stream with their content that supports Read and Seek operations. Part of the Telerik UI for ASP. If you want to obtain a reference to the DocumentSource after you have imported a document, you should use the Loaded event of the PdfDocumentSource object to obtain the loaded document. Jan 7, 2014 · RadPdfViewer enables you to easily load and display PDF documents natively in your app without using any third-party tools except the Telerik WinForms toolbox. Windows]. PDF retrieved from database is not shown correctly There are several perquisites that have to be fulfilled in order for a PDF file to be loaded correctly. . As far as our research shows, out-of-browser applications with elevated trust might allow you access to such files. NET Core, and discover its built-in features like the toolbar and the supported events. Nov 30, 2010 · Hi, i have doubt on radrichtextbox and those property. Jun 9, 2025 · Get started with the jQuery Grid by Kendo UI and learn how to set the PDF export functionality. Nov 19, 2024 · Hi, Can I request that the Pdf Viewer: - Load multiple pdf files on open. " What have i made wrong? <telerik:Ra 0 I am trying to use Telerik's RadPdfViewer, but I've run into a problem. The event allows you to check what PDF file will be loaded in the Blazor PDF Viewer and decide whether to load it or reject it. This example demonstrates how to use a PDF from the server, modify its fields based on user input and export it to PDF on the client. Apr 7, 2020 · Hello Joel, Yes, return new FileStreamResult (stream, "application/pdf"); is a valid return type. Uri (@"d:\document. How can I export a PDF file from a hidden Editor and load it into a PDFViewer? Follow the steps in the Knowledge Base section of the Telerik UI for ASP. Oct 22, 2025 · The PDF Viewer component is part of Telerik UI for Blazor, a professional grade UI library with 110+ native components for building modern and feature-rich applications. I cannot seem to get the it to load any document. NET MAUI. The control comes with a handy toolbar including various built-in tool that allow the user to interact with the UI component. May 24, 2021 · Having troubles loading your PDF files in the Telerik PdfViewer for ASP. data property of the Kendo UI PDF Viewer. New to Kendo UI for jQuery? Start a free 30-day trial kendo. New to Telerik UI for ASP. Explore the Telerik UI for Blazor PDF Viewer component to access, open, download and view PDF files in-browser. I don't want to include it in the app as a resource as it is updated frequently (it's a help document). No matter what type of document you want to print, the RadPrintDocument. PdfReader. xlsx and even *. FormatProviders. Net Core (. Visualize Documents from a Fixed Document The . Load Cyrillic font for PDF export Example View Learn how to load PDF document pages on demand in the Kendo UI for Angular PDFViewer component and improve performance when loading large files. 210. PDF Silent Print Jan 26, 2024 · The PictureBox cannot display PDF Base64 strings though. currently I am using PdfViewer and can open some pdf files. Part of the Telerik UI for WinForms library along with 165+ professionally-designed UI controls. Learn how to upload a PDF file through the Telerik UI for ASP. Jan 21, 2015 · Virtual Classroom, the free self-paced technical training that gets you up to speed with Telerik and Kendo UI products quickly just got a fresh new look + new and improved content including a brand new Blazor course! Aug 16, 2015 · Dear Telerik Team, It's possible to customize the PDF Navigator icons? How can i do to load a PDF that i put inside my solution or inside of a da Nov 13, 2023 · Hi Carlos, I confirm that we already have an open bug report regarding the described problem with the loading time: PDF Viewer initial document load is very slow. Feb 19, 2020 · Convert, View and Download Different Formats The control not only allows you to load and display PDF documents, thanks to its integration with the Telerik Document Processing library (which is part of the Telerik ASP. Windows. NET AJAX? Take a few minutes to check out these options—I bet you won’t regret it! Jul 7, 2023 · Open, view, download and print PDF documents from your ASP. Regards, George Telerik Jun 15, 2012 · i am generating an SSRS report into PDF dynamically and i need to show it in the PDF viewer. csv to PDF and to load the file in RadFixedDocument is the main document unit of the PdfProcessing library offered by Telerik Document Processing libraries. Check our document management article about Getting Started. when I use the pdf viewer and set load function The snippet below shows how to load an example Cyrillic font, so the Grid can properly export the data in Bulgarian language (that uses Cyrillic characters) to a PDF document. How to insert the SignaturePad written signature to sign a PDF document Find other useful information in the Knowledge Base section of the Telerik Document Processing documentation. but i couldnot access all property in viewmodel class. NET MAUI PDF Viewer Overview The Telerik UI for . Problem You need to print a PDF document without showing it to the user. Dec 27, 2012 · How do we load some specific PDF/doc files from server into FileExplorer and user can download into their machine? and i could not load files from shared folder on the server. The size of the PDF File is about 5MB. NET MAUI PDF Viewer allows you to load the PDF document from a stream by using the RadFixedDocument element. May 13, 2020 · Yes, you can load PDF files from stream by integrating RadPdfViewer with Telerik Document Processing Libraries. NET AJAX? Take a few minutes to check out these options—I bet you won’t regret it! Sep 23, 2013 · I need to display pdf files in silverlight user control. The following code snippet shows how to import RadFixedDocument from file stream and after that export the document to text: May 21, 2025 · Get started with the jQuery PDFViewer by Kendo UI and learn how to create and initialize the component. Its a large document with > 300 pages saved as PDF version Learn more about the Telerik UI PDFViewer component for ASP. To achieve this, load the PDF document as a base64 string or file path in PDF Viewer control using the Load() method dynamically. I have voted there on your behalf and raised the priority of this issue. The PDF is larger in size (roughly 167+ pages) but that is not uncommon for the average pdf we are generating. rtf, *. May 28, 2015 · Hello Blas, RadPdfProcessing is independent of UI library and has no notion of the way the document should be visualized. NET AJAX. Do you ha The WinForms PDF Viewer enables you to easily load and display PDF documents natively in your application. Net 7. Testing with similar PDF of that size it takes about 4 seconds to load on my computer. PDF Viewer enables you to easily load and display PDF documents in your desktop and mobile applications. The examples demonstrate many specific user case scenarios, that might be really helpful. NET MAUI application. NET Core PDF Viewer to display, save and print PDF files directly from your applications. 101\NewHdPic\. May 23, 2024 · From what I can tell, the issue appears to be the third party opensource pdf. NET Core Upload component and load it into the Telerik UI for ASP. See how! This article demonstrates how you can convert different types of documents to PDF with Telerik Document Processing. I need to attach a RadPDFViewer to a PDF that resides out on our internal network. - Thumbnail onclick to move to Description How can I generate a PDF from a Kendo UI Spreadsheet and display the PDF in a separate <iframe>? Solution Load the generated base64 PDF data in the <iframe> element. It stays that way even if I try to load a Pdf by simply clicking open. Sep 8, 2025 · Load PDF documents dynamically in Blazor PDF Viewer Component 8 Sep 2025 1 minute to read At times, you might need to switch or load the PDF documents dynamically after the initial load operation. WPF PDF Viewer allows you to view PDF documents within your application without the need for an external viewer. Under the hood, most of the PDF export options use the Drawing library. If the stream supports only Read, its content should be copied to a MemoryStream, which will enable the Seek operation as well and will facilitate RadPdfViewer to show the document. Aug 8, 2014 · Hello Sebastian, Thank you for contacting us. Includes support, documentation, demos, virtual classrooms, Visual Studio Code Extensions and more! Out of the box, the Kendo UI suite provides built-in PDF export and configuration options. I am trying to load by stream from azure storage from a blob, I am connected to that correctly, but I can't seem to get the pdf viewer to display the pdf. Zooming in and out sometimes corrects this visualization problem but the initial rendering of the document is almost always broken. For example, when loading or submitting data or processing large amounts of data/updates. The following snippet demonstrates Telerik RadPdfProcessing provides easy to use API which allows code-only generation of PDF documents. Fixed. NET MVC PDFViewer component enables end-users to review PDF files directly within the browser without the need to perform download operation at first hand. In this article you can find the complete list of all SDK examples for RadPdfProcessing. The Telerik UI for Blazor PDF Viewer component exposes several events that allow additional customization of the built-in behavior: The OnOpen event is triggered when the end user selects a file to that they want to open. Jan 29, 2021 · Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher. I am using the demo provide in the next u May 8, 2012 · I am using WPF PDF Viewer (the latest version) - there is a certain PDF document I can't load. NET Standard. Solution RadPdfViewer and RadRichTextEditor are two controls from the UI for WinForms suite that supports loading . RadPdfViewer enables you to easily load and display PDF documents natively in your application without using any third-party tools except Telerik’s WinForms toolbox. NET Core PDF Processing Library, you can enable the creation, edit and export of PDF files. PdfViewer. Nov 17, 2011 · I am trying to load a PDF document into the PDF viewer. Includes support, documentation, demos, virtual classrooms, Visual Studio Code Extensions and more! I have a PDF file stored in a database as a byte array. When retrieving a file as a byte array from database and creating a Feb 2, 2016 · Hi, I want to load the PDF file into Telerik ReportViewer (on IPAD) for getting options like zoom, print, download etc. But then, the Kendo UI for jQuery PDF Viewer has major zoom / scale issues Sep 24, 2014 · Hi, I'm using the latest version of Telerik and I have a problem opening a PDF file. file. Learn more about the Telerik UI PDFViewer component for ASP. NET Core and . Documents. 0) Blazor project.